testSTBReader.cpp File Reference

#include <iostream>
#include "DGtal/base/Common.h"
#include "ConfigTest.h"
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/readers/STBReader.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/io/writers/PPMWriter.h"

Go to the source code of this file.

Functions
	TEST_CASE ("Testing STBReader")

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systemes d'information - LIRIS (CNRS, UMR 5205), CNRS, France

Date

2022/06/14

Functions for testing class STBReader.

This file is part of the DGtal library.

Definition in file testSTBReader.cpp.

Function Documentation

TEST_CASE()

TEST_CASE

(

"Testing STBReader"

)

Definition at line 50 of file testSTBReader.cpp.

{
  SECTION("Testing feature io/readers of STBReader (Grayscale PNG)")
  {
    std::string filename = testPath + "samples/contourS.png";
    typedef ImageSelector < Z2i::Domain, Color>::Type Image;
    Image image = STBReader<Image>::import( filename );
    CAPTURE(image);
    
    PPMWriter<Image>::exportPPM("testwriter.ppm", image);
    CHECK( image.isValid());
  }
  
  SECTION("Testing feature io/readers of STBReader (PPM color)")
  {
    std::string filename = testPath + "samples/color64.";
    typedef ImageSelector < Z2i::Domain, Color>::Type Image;
    
    Image image = STBReader<Image>::import( filename+"ppm" );
    PPMWriter<Image>::exportPPM("testwriterColor.ppm", image);
    CHECK( image.isValid());
  }
  
  SECTION("Testing all file formats")
  {
    std::string filename = testPath + "samples/color64.";
    typedef ImageSelector < Z2i::Domain, Color>::Type Image;
    
    Image imagePPM = STBReader<Image>::import( filename+"ppm" );
    CHECK( imagePPM.isValid());
    Image imageJPG = STBReader<Image>::import( filename+"jpg" );
    CHECK( imageJPG.isValid());
    Image imageTGA = STBReader<Image>::import( filename+"tga" );
    CHECK( imageTGA.isValid());
    Image imageBMP = STBReader<Image>::import( filename+"bmp" );
    CHECK( imageBMP.isValid());
    Image imagePNG = STBReader<Image>::import( filename+"png" );
    CHECK( imagePNG.isValid());
    Image imageGIF = STBReader<Image>::import( filename+"gif" );
    CHECK( imageGIF.isValid());
 
    //For lossless compression formats
    CHECK( imageBMP == imagePPM );
    CHECK( imageTGA == imagePPM );
    CHECK( imagePNG == imagePPM );
  }
}

References CAPTURE(), DGtal::PPMWriter< TImage, TFunctor >::exportPPM(), DGtal::STBReader< TImageContainer, TFunctor >::import(), DGtal::Image< TImageContainer >::isValid(), and SECTION().